Demonstration of inscription and ablation of phase masks for the production of 1st, 2nd, and 3rd order FBG gratings using a femtosecond laser
Graham N. Smith,Kyriacos Kalli,Ian Bennion,Kate Sugden +3 more
- Vol. 7205, pp 720511
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In this paper, the first femtosecond laser inscription/ablation of phase/amplitude masks for the demonstrated purpose of inscribing Bragg gratings in optical fibers was presented.Abstract:
We present to the best of our knowledge the first example of femtosecond laser inscription/ablation of phase/amplitude
masks for the demonstrated purpose of inscribing Bragg gratings in optical fibers. We show that the utilization of a
femtosecond laser for the mask production allows for great flexibility in controlling the mask period. The masks are used
to produce 1 st , 2 nd and 3 rd order fiber Bragg gratings (FBGs) in SMF-28. The work demonstrates the proof of concept and
flexibility for the use of femtosecond lasers for the rapid prototyping of complex and reproducible mask structures. Our
inscription studies are augmented by considerations of three-beam interference effects that occur as a result of the strong
zeroth-order component that is present in addition to higher-order diffraction components.read more
Citations
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Journal ArticleDOI
Inscription and characterization of Bragg gratings in single-crystal sapphire optical fibres for high-temperature sensor applications
TL;DR: In this paper, the fabrication and high-temperature characteristics of Bragg gratings in single-crystal sapphire fibres inscribed by infrared femtosecond laser pulses are reported.
Book ChapterDOI
Advances in femtosecond micromachining and inscription of micro and nano photonic devices
TL;DR: In this article, the authors focus on three key areas of interest for femtosecond micromachining and inscription, including phase masks and optical coherence tomography (OCT) phantom calibration artefacts.
Journal ArticleDOI
Quantitative characterization of energy absorption in femtosecond laser micro-modification of fused silica.
TL;DR: Quantitative characterization of the theoretical model is performed by fitting key parameters of the absorption process such as cross-section of multi-photon absorption and effective electronic collision and recombination times.
Journal ArticleDOI
Research at the University of Kent and subsequent research activities
TL;DR: In this paper, the author's research activities undertaken at the Applied Optics Group, the University of Kent at Canterbury are reviewed, during his time there from 1988-1992 and 1994-1996, followed by a summary of recent research.
Proceedings ArticleDOI
Femtosecond laser inscribed phase masks for fibre Bragg grating sensor inscription
Graham C. B. Lee,Kyriacos Kalli,Charalambos Koutsides,Zhijun Yan,Dotun Adebayo,Michael Komodromos,Kate Sugden +6 more
TL;DR: In this article, femtosecond laser inscribed phase masks are used to produce fiber Bragg gratings having different o rders according to the phase mask period and mask properties.
References
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Journal ArticleDOI
Formation of Bragg gratings in optical fibers by a transverse holographic method
G. Meltz,W W Morey,W. H. Glenn +2 more
TL;DR: Bragg gratings have been produced in germanosilicate optical fibers by exposing the core, through the side of the cladding, to a coherent UV two-beam interference pattern with a wavelength selected to lie in the oxygen-vacancy defect band of germania, near 244 nm.
Journal ArticleDOI
Bragg gratings fabricated in monomode photosensitive optical fiber by UV exposure through a phase mask
TL;DR: In this paper, a photolithographic method is described for fabricating refractive index Bragg gratings in photosensitive optical fiber by using a special phase mask grating made of silica glass.
Journal ArticleDOI
Quantitative optical phase microscopy
TL;DR: A new method for the extraction of quantitative phase data from microscopic phase samples by use of partially coherent illumination and an ordinary transmission microscope is presented, able to recover phase even in the presence of amplitude modulation.
Journal ArticleDOI
Quantitative phase‐amplitude microscopy I: optical microscopy
TL;DR: It is shown that the resolution of the method is not compromised over that of a conventional bright‐field image, and the signal‐to‐noise ratio of the phase recovery, however, does depend on the degree of coherence in the illumination.
Journal ArticleDOI
Analysis of grating formation with excimer laser irradiated phase masks
TL;DR: In this paper, the interference field produced by a periodic mask and the near-field energy density and fluence distribution for varying degrees of order content when exposed using an excimer laser with finite spatial and temporal coherence were analyzed.